{
  "meta": {
    "subject": "Roblox group 13621293",
    "retrieved": "2026-10-21T21:41:11.017Z",
    "licence": "Measured by roregister.com from public Roblox APIs. Free to reuse with attribution to roregister.com. Not affiliated with Roblox Corporation.",
    "notes": {
      "member_history": "insert-on-change; a point exists only where the value differed from the prior reading.",
      "detection_dates": "ownership/name changes are dated when this register observed them, not when they happened."
    }
  },
  "group": {
    "id": 13621293,
    "name": "Polish Fans | Hooligans & Ultras",
    "created": "2022-01-05T08:48:22.080Z",
    "owner_user_id": 10754096231,
    "member_count": 4691,
    "has_verified_badge": false,
    "is_locked": false,
    "status": "live",
    "first_measured": "2026-08-10T12:13:51.144Z",
    "last_measured": "2026-10-21T19:01:20.075Z"
  },
  "member_history": [
    {
      "measured_at": "2026-08-10T12:13:51.144Z",
      "member_count": 4687
    },
    {
      "measured_at": "2026-08-10T21:22:34.650Z",
      "member_count": 4688
    },
    {
      "measured_at": "2026-08-12T16:26:26.806Z",
      "member_count": 4689
    },
    {
      "measured_at": "2026-08-17T10:20:09.895Z",
      "member_count": 4690
    },
    {
      "measured_at": "2026-08-17T19:50:39.990Z",
      "member_count": 4691
    },
    {
      "measured_at": "2026-08-21T11:32:04.545Z",
      "member_count": 4690
    },
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      "member_count": 4689
    },
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      "member_count": 4690
    },
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      "member_count": 4689
    },
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      "member_count": 4692
    },
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      "member_count": 4691
    },
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      "measured_at": "2026-09-11T12:41:27.343Z",
      "member_count": 4692
    },
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      "member_count": 4691
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      "member_count": 4690
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      "member_count": 4689
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      "member_count": 4690
    },
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      "member_count": 4689
    },
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      "measured_at": "2026-09-20T18:10:36.284Z",
      "member_count": 4688
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      "member_count": 4689
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      "member_count": 4690
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      "member_count": 4689
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      "member_count": 4690
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      "member_count": 4689
    },
    {
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      "member_count": 4690
    },
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      "member_count": 4689
    },
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      "measured_at": "2026-10-07T15:01:49.640Z",
      "member_count": 4688
    },
    {
      "measured_at": "2026-10-07T20:50:48.833Z",
      "member_count": 4687
    },
    {
      "measured_at": "2026-10-10T13:41:14.100Z",
      "member_count": 4689
    },
    {
      "measured_at": "2026-10-12T11:31:03.138Z",
      "member_count": 4690
    },
    {
      "measured_at": "2026-10-14T18:51:04.436Z",
      "member_count": 4689
    },
    {
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      "member_count": 4690
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    },
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    }
  ],
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      "name": "Polish Fans | Hooligans & Ultras",
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      "last_seen": "2026-10-21T19:01:20.075Z",
      "current": true
    }
  ],
  "ownership_events": [
    {
      "observed_at": "2026-08-10T15:57:51.350Z",
      "previous_owner": null,
      "new_owner": 10754096231
    }
  ]
}